From: Shenghao Ding Date: Wed, 11 Dec 2024 04:38:59 +0000 (+0800) Subject: ASoC: tas2781: Fix calibration issue in stress test X-Git-Tag: v6.13-rc3~30^2^2~3 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=2aa13da97e2b92d20a8ad4ead10da89f880b64e7;p=thirdparty%2Flinux.git ASoC: tas2781: Fix calibration issue in stress test One specific test condition: the default registers of p[j].reg ~ p[j+3].reg are 0, TASDEVICE_REG(0x00, 0x14, 0x38)(PLT_FLAG_REG), TASDEVICE_REG(0x00, 0x14, 0x40)(SINEGAIN_REG), and TASDEVICE_REG(0x00, 0x14, 0x44)(SINEGAIN2_REG). After first calibration, they are freshed to TASDEVICE_REG(0x00, 0x1a, 0x20), TASDEVICE_REG(0x00, 0x16, 0x58)(PLT_FLAG_REG), TASDEVICE_REG(0x00, 0x14, 0x44)(SINEGAIN_REG), and TASDEVICE_REG(0x00, 0x16, 0x64)(SINEGAIN2_REG) via "Calibration Start" kcontrol. In second calibration, the p[j].reg ~ p[j+3].reg have already become tas2781_cali_start_reg. However, p[j+2].reg, TASDEVICE_REG(0x00, 0x14, 0x44)(SINEGAIN_REG), will be freshed to TASDEVICE_REG(0x00, 0x16, 0x64), which is the third register in the input params of the kcontrol. This is why only first calibration can work, the second-time, third-time or more-time calibration always failed without reboot. Of course, if no p[j].reg is in the list of tas2781_cali_start_reg, this stress test can work well. Fixes: 49e2e353fb0d ("ASoC: tas2781: Add Calibration Kcontrols for Chromebook") Signed-off-by: Shenghao Ding Link: https://patch.msgid.link/20241211043859.1328-1-shenghao-ding@ti.com Signed-off-by: Mark Brown --- diff --git a/sound/soc/codecs/tas2781-i2c.c b/sound/soc/codecs/tas2781-i2c.c index be2ca5eb6c938..fb8cd2284fe85 100644 --- a/sound/soc/codecs/tas2781-i2c.c +++ b/sound/soc/codecs/tas2781-i2c.c @@ -370,7 +370,7 @@ static void sngl_calib_start(struct tasdevice_priv *tas_priv, int i, tasdevice_dev_read(tas_priv, i, p[j].reg, (int *)&p[j].val[0]); } else { - switch (p[j].reg) { + switch (tas2781_cali_start_reg[j].reg) { case 0: { if (!reg[0]) continue;